NPPES file of Aug 9, 2026

Osler Jay Justo Guzon, MD

Cardiovascular Disease Physician · Saint Louis, MO

Osler Jay Justo Guzon, MD is a cardiovascular disease physician with a practice address in Saint Louis, Missouri, and NPI 1285683888, issued on May 9, 2006. Check the license (Missouri 2005013486, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1285683888
Name
Osler Jay Justo Guzon
Credential
MD
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License number
2005013486 MO
Self-reported in NPPES; status is on the state search
Practice location
5201 Mid America Plz, Saint Louis, MO 63129
Phone
(314) 362-1291
Enumerated
May 9, 2006
Record last updated
Aug 13, 2025
Fax
(314) 362-4278
Medicaid ID
204403802 MO
Medicare enrollment
Enrolled (PECOS I20121008000439); accepts Medicare assignment
Medical or professional school
University Of Missouri, Kansas City, School Of Medicine, 2001
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 5201 Mid America Plz

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Linda Boucher, FNPFamily Nurse Practitioner1437634904
  2. Koushik Das, MDGastroenterology Physician1023245859
  3. Angela Demetrulias, ODOptometrist1194013086
  4. Nicole Ducharme, DOEndocrinology, Diabetes & Metabolism Physician1346208394
  5. Tiffany Dy, MDAllergy & Immunology (Internal Medicine) Physician1528292174
  6. Omar Elsayed-Ali, MDAllergy & Immunology (Internal Medicine) Physician1174064596

Verify Osler Jay Justo Guzon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
    Search for license 2005013486
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Missouri license search

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2.3 times the Medicare Part D claims of the average cardiovascular disease physician in 2024

6,934 Medicare Part D claims for 1,000 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 31% of claims. 34 claims were for opioids.

  1. Osler Jay Guzon6,934
  2. Specialty average3,078

Most prescribed

  1. Losartan Potassium703 claims
  2. Farxiga583 claims
  3. Eliquis502 claims
  4. Atorvastatin Calcium474 claims
  5. Spironolactone423 claims
  6. Clopidogrel325 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $40,433.98

65 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 16,686 providers of this specialty with any payment received $3,819.56 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Osler Jay Guzon$40,434
  2. Specialty average$3,820

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Heart Care Institute LLCCreve Coeur, MO
  2. Washington UniversitySaint Louis, MO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Osler Jay Justo Guzon among 446 cardiovascular disease physician records in Missouri

Osler Jay Justo Guzon, MD is one of 446 cardiovascular disease physician records with a practice address in Missouri. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 16% of them.

  • NPI issued2006 · 16% of these records are older, 40% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2001 · median 1998 among the 293 with a school on file
  • Record last updated2025 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Cardiovascular Disease Physician providers in Missouri

There are 446 cardiovascular disease physician records in Missouri.

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. Sudip Datta, MDSaint Louis, MO 631291366678567
  2. Sudhir Jain, MDSaint Louis, MO 631291487698809
  3. Youssef Abdulnabi, M.D.Saint Louis, MO 631281811958689
  4. Farhaan Ahmad, MDSt Louis, MO 631281609923598
  5. Tammam Al-Joundi, MDSt Louis, MO 631281255387494
  6. Nizar Assi, MDSaint Louis, MO 631281194772954
  7. Om Bahl, M.D.Saint Louis, MO 631281497751432
  8. Charles Carey, M.D.Saint Louis, MO 631281104822014

Common questions

What is Osler Jay Justo Guzon, MD's NPI number?

Osler Jay Justo Guzon, MD's National Provider Identifier (NPI) is 1285683888, issued on May 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Osler Jay Justo Guzon, MD located?

The NPPES record lists a practice address at 5201 Mid America Plz, Saint Louis, MO, 63129. Phone: (314) 362-1291. Providers update this record themselves, so call before visiting.

How can I verify Osler Jay Justo Guzon, MD's license?

NPPES lists Missouri license number 2005013486, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Osler Jay Justo Guzon, MD prescribe under Medicare Part D?

In 2024, Osler Jay Justo Guzon, MD had 6,934 Medicare Part D claims for 1,000 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.